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Finding the Fourth Proportional to 414,905.10, 620,924.05 and 248,812.30

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Solution

The fourth proportional to 414,905.10, 620,924.05 and 248,812.30 is: 372,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,905.10 : 620,924.05 = 248,812.30 : x
  2. Step 2: Convert to fraction form
    414,905.10/620,924.05 = 248,812.30/x
  3. Step 3: Cross multiply
    414,905.10x = 620,924.05 × 248,812.30
  4. Step 4: Simplify right side
    414,905.10x = 154,493,541,005.82
  5. Step 5: Solve for x
    x = 154,493,541,005.82/414,905.10
  6. Step 6: Final answer
    x = 372,358.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.